I think that will only happen to progressive country who has high technology and who established bitcoins in their community. It would take long years before it could adopt by the third world countries. But i hope it would happen in the future for us to be able to transact easily with merchants using bitcoins.
Yes, the higher the level of development and education, the greater the chances of a nation adopting Bitcoin on a large scale. But in some situations the adoption of Bitcoin occurs first in third world countries, such as Venezuela, where people feel more strongly the destructive effects of fiat currencies.